Wood-sawing machine.



No.'879,37'6. U PATENTED FEB. 1a, 1908.

A. FAIROHILD. WOOD SAWING MACHINE.

APPLICATION FILED JAN. 16. 1907.

2 SHEETS-SHEET 1.

nnilw u u- VV/ TNESSES A TTORNEYS v No. 879,876. PATENTED FEB. 18, l908.A. PAIRGHILD. WOOD SAWING MACHINE.

APPLICATION FILED .1a, 1907.

2 SHEETS-SHEET 2.

[NVEN TOR flzammzrczzzd 'VVIZTNESS 131- ALLAl-i FAIRGHILD, OF HELMER,MICHIGAN.

WGOD-SAWIN \r MAEEINE.

Patented Feb. 18, 1808.

filed January 164 1907. Serial li o. 352558- v *e united States, lf'lllliag at lloloount niif .lJll 'JG and-State ofMlchi- We inv nted itnew and useful Woodg Machine oi which the following; is a iou. v hisinvention relst's to Woo sawing nuiend it l t i l a light and icharacter which can led and the blade of which L s w; by ldll tOi'constituting: a port of o he illusion-c.

the! object is to provide octuat by means of which :i long i to theblade Without and cumberi dpimnc Another object is to provide machinewhich can be niorcd of mg a stz'itionziry log or other object to he cutwithout the provision of an extension shaft or th r similar devices.

A further object is to provide a Wood sewing machine which can beeffectually used on uneven. ground and which can be adjusted to anydesired angle in relation to the object to Will these and other objectsin vim the invention consists of certain novel features of construct onand combinations of parts 1 i l ereinufter more liuily described theclaims.

v drnWir-Zs is shown is invent; swings: igiire 1 i or the machine,portions '7 (on away and the end of the saw uids i wan slnrr'e theframe; Fig. .2 is a the machine, the free ends of s V erse sectionthrough 2; in the direction of the L3 the irsuie. F 1- is an thelrnnio'; a detail View of one end of the guide in the frame; and 6 is adetail by characters of mine of the mearm being re disposed above rics amotor 5 preferably of the gasolone type and the shaft 6 ol which carriesit pulley 7 and one or more flywheels 8. A handle 9 is and connected tothe frame A and o, holding arm 10 extends forward from the upper portionof the frame and is'pr0- 'v'idcd adjacent its free end with a pluralityof prongs 11 adapted to engage the object to )6 cut Pivotiilly mountedon the shaft 6 is a guide frame l5 consisting of an angle iron foldedupon itself to form parallel upper and lower members 12 and 13respectively, the imvardly extending portions of these members beingconnected at regular intervals by cross strips 1% The outer edge of eachmember 12 and 13 15 formed with U. guide 15 and extending betvvcen thosemembers and their guides are cross strips 16 secured to a longitudinalstrip 17 the ends of which. are fastened to opposite end portions of arack C. This rack consists of a channel arm 18 shaped to form asubstantially oval frame and the walls of this channel arm has aplurality of rollers 19 interposed between them and adopted to besuccessively engaged by the teeth of a. pinion 20. A guide wheel 21having an annular groove 22therein rotates with this pinion and travelsaroum l azguide rail 23 which is disposed longitudinally within the ruckC and is formed with or scoured upon the longitudinal strip 17. The endsof the guide rail 23 are rounded and concentric with the endsof the rackC, and the Wheel 21 is adapted to travel around these ends and above andbelow the guide rail so as to hold the pinion constantly in engagementwith the rollers in the rack.

The pinion and Wheel 21 are secured to 9 a shaft 24 journalcd at one endin a bearing 25 carried by a frame 26 mounted to rock Between guidefrmne l3 and a brace 27 which is pivoted on shaft 6 and is secured tothe frame B shown at 28. This rock frame is carried by a shaft 29connected to frame B and brace 21? and one end of the frame 26 engagesan arcuzitc guide 38 secured to the frame B. A pulley 31 is secured toshaft 24 and is adopted to be driven by a belt- 32 ex tending partlyaround pulley 1%. saw 33 is rigidly connected to the rack C as shown at34 and pivoted to the frznue B near the saw is a guide arm 35 having 1depending to-OH 36 at its free d embrace the back of the saw. sec-curedupon the frame :3.

A. lmodlo moved to any desired angle in relation to the log, The sawguide 35 of course remains in engagement with the saw until the same hasentered its full width into the 10 whereupon the guide will remain uponthe 0g while the saw continues the cuttin operation.

motor through belt 32 and pulley 31 andthe pinion 20 is thereforerotated and movesthe rack C therealong. The guide 23 and the wheel 21serve to hold the pinion and rack constantly in mesh and therefore areciprocatihg motion will be imparted to. the rack by the gear. As saidgear 20 is carried by the rock frafme 26 it is free to move around theends of the guide strip 23 and the shaft 24 and pulley 31 will of coursemove upward and downward with the gear. As the saw cuts downward theentire frame B and the parts carried thereby will swing upon pivot shaft6. It will be understood that the arm Motion is transmitted to t 1e sawfrom the 10 holds the frame A in fixed relation with the log Owing tothe light weight of the 5 machine the same can be readily moved to anydesired-position adjacent a log. It will be noted that long strokes ofthe saw can be 5 produced with this apparatus, said strokes )eing onlylimited by t and frame B.

What is claimedis: A wood sawing machine comprisin a base strip havingconverging faces and abottom edge, a yoke embracing and pivotallyconnected to the base strip, a frame secured to and upon the yoke, amotor carried thereby, a drive shaft extending from the motor, a guideframe pivotally mounted upon the 'shaft, ,a .saw mounted to reciprocateupon said frame, and mechanism upon the frame and disposed to beactuated by the shaft for reciprocating the saw. In testimony that Imy-own, I have hereto afiixed my signature in'the presence of twowitnesses.

. ALLAN FAIRCHILD. 4

1e size of the rackC Witnesses? JOHN TRACY, WILLIAM C. KELLY.

claim the foregoing

